Humidifier.



M. F. MANGELSDORF F.

HUMIDIFIER.

APPLICATION FILED APR-29. I914- Patented Apr. 11', 1916.

2 SHEETS-SHEET I.

Patented Apr. 11, 1916.

2 SHEETS-SHEET 2.

M. F. MANGELSDORFF.

HUMIDIFIER.

APPLICATION FILED APR.29, 1914.

MAX FRED MANGELSDORFF, 0! UNION HILL, NEW JERSEY. I

, i HUMIDIFIER.

Specification of Letters Patent.

Patented Apr. 11, 1916.

Application filed April 29', 1914. Serial No. 335,101.

To all whom it may concern:

Be it known that 1, MAX F. MANGELS- DORF, a citizen of the UnitedStates, and a resident of Union Hill, New Jersey, have invented certainnew and useful Improvements in Humidifiers, of which the follow ing is adescription in suchfull, clear, and exact terms as will enable anyperson skilled in the art to which it pertains to make and use the same.

My invention relates to an apparatus for producing a humid atmosphere,generally known as a humidifier and it consists in its preferredembodiment in a casing. containing an evaporator surface above which isa fan or other means for drawing a current of air over the surface.

of water and allows it to'fiow back over the evaporator surface againstthe before mentio'ned current of air. In this manner the water isvaporized and the vapor is absorbed by the air which passes off in ahumid state ing drawings represent the preferred em-.

bodiment.

In these drawings Figure 1 1s a vertical section of the apparatus.

Fig. 2 1s a sectional plan on the line 22 of Fig. 1' and Fig. 3 is asectional plan on the line 3--3 of Fig. 1. 7

As shown best in Fig. 1, the base of the machine has a pan 10, designedto: receive water which may be supplied from any source. I prefer,however, to employ one or more bottles 11, which are inverted on steps12 and held thereby with their mouths at the designed water level, sothat as soon as the water falls below this level additional water issupplied from the bottles. WVhen empty the bottles may be removed andfilled ones again placed in position.

Supported on the pan by legs 14 is the casing or body 15 which ispreferably formed of sheet metal and contains a perforated bottom 16 onwhich is placed the Below the casing .18 a pan deslgned to contaln waterand a form of water elevator WhlCh ralses a stream evaporator plates 17These are set on edge and extend longitudinally of the casing for thewhole or the greater part ofthe length thereof so as to provide asurface of wide extent over which the water may flow in finely dividedstreams. Beyond the aforegoin'g, the prec ise construction of theevaporator 17 1s not material.

- Above the evaporator is located the cap or top 18 of the'casing whichcommunicates with the interior thereof by a throat be of any form but ishere shown as of the slrrocco type. The motor (not shown) for drivingthe fan may be located above the cap or top 19 of the casing.

21 indicates the outlet for the humid air.

The shaft 22 of the fan and motor is hollow below the fan and extendsdown to the bottom of the pan 10 where its lower end is mounted in astep bearing 23 of any desired kind. At its bottom the shaft 22 haswater inlet openings-24 and above the evaporator the shaft has outletopenings 24. 25 indicates a screw or other form of water elevator which,according to the form here shown,'is located in the bottom of the hollowshaft 22 and by the rotation of the shaft causes the water'to flowupward from the pan 10 to the outletopenings 24 fromwhich 'lt passes instreams over the evaporator and then flows down through the evaporatorin films or finely divided streams.

19. and which contains a fan 20. This may Ward from the bottom of thecasing through the evaporator. the water flowing down the evaporator andthe air takes hp the water in the manner described. The fan forces theair current "out-through the outlet 26 in the cap or top 18 fromwhichthe humid air is conducted to the place of its use.

I desire it understood that my invention is not limited to the specificform of the various elements shown in the drawings but that these may besubstituted by other forms of the instrumentalities shown. For examplethe fan and water elevator need not be of the particular charactershown; any

This current of air meets other known type of fan and elevator may beemployed in their stead The invention resides rather in the combinationof elements than in their specific construction.

Having thus described my invention, what 5 I claim as new and desire tosecure by Let-- ters Patent of the United States is:

In apparatus of the class described, an evaporating surface comprising asheet and a corrugated spacing strip wound into a l spiral whereby thesuccessive turns of the sheet are held spaced by the strip, and meansfor supplying moisture to the surface. I

In testimony whereof I have hereunto signed my name in the presence oftwo Wit-

